Brakes should operate with minimal amount of noise. Excessive squeal, screech, groaning, grinding chatter or rattle means your brakes need attention. Probable Cause: Corrective Action: Too much lateral run out of rotor. Correct runout to manufacturers spec. Worn pads or linings. Replace with new pads or linings. Twisted brake shoe. Replace brake shoes. Weak or broken spring components. Replace with new springs. Drums out of round. Turn or replace drums. Loose wheel bearing. Adjust or
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